NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Buildings & Construction

Building control systems

Search Publications

Search Title, Abstract, Conference, Citation, Keyword or Author
  • Published Date
Displaying 126 - 150 of 176

Residential Heat Pump Heating Performance with Single Faults Imposed

October 29, 2010
Author(s)
William V. Payne, Piotr A. Domanski, Seok Ho Yoon
A heat pump equipped with a thermostatic expansion valve (TXV) was tested in environmental chambers during steady-state no-fault and imposed-fault operation. The studied system was an R410A split residential heat pump with an 8.8 kW nominal cooling

ANALYSIS OF SEGMENT-BY-SEGMENT ? - NTU MODELLING OF A MINICHANNEL CO2 GAS COOLER

July 12, 2010
Author(s)
Santiago M. Ballester, Jose M. Corberan, Jose Gonzalvez-Macia, Piotr A. Domanski
Most of the current air-to-refrigerant heat exchanger models use the classic ε-NTU approach. These models do not account for longitudinal conduction neither in the fin nor in the tube, transverse conduction in the tube, and for the heat conduction between

Residential Heat Pump Heating Performance with Single Faults Imposed

July 11, 2010
Author(s)
Seok H. Yoon, William V. Payne, Piotr A. Domanski
A heat pump equipped with a thermostatic expansion valve (TXV) was tested in environmental chambers during steady-state no-fault and imposed-fault operation. The studied system was an R410A split residential heat pump with an 8.8 kW nominal cooling

Detecting Cooling Coil Fouling Automatically-Part 1: A Novel Concept

July 1, 2010
Author(s)
Daniel A. Veronica
Fouling of surfaces within the heat exchangers of heating, ventilating, and air conditioning (HVAC) systems of buildings is an equipment fault that wastes appreciable amounts of energy, however, it escapes detection under current building automation

Evolutionary Computation Approach to Heat Exchanger Design

June 26, 2010
Author(s)
David A. Yashar, Janusz Wojusiak, Kenneth Kaufman, Piotr A. Domanski
The efficiency of a vapor compression system is strongly influenced by the performance of the finned-tube heat exchangers it employs. Heat exchanger performance is strongly influenced by the refrigerant circuitry, i.e., the connection sequence of the tubes

Evaporator Optimization for Non-Uniform Air Distribution

June 13, 2010
Author(s)
Piotr A. Domanski, David A. Yashar, Sunil Lee
This study demonstrates the performance improvements that can be achieved by accounting for the in-situ air flow distribution during the design phase of a heat exchanger. The heat exchanger used in this study was a two-slab, A-shaped finned-tube evaporator

Wireless Sensor Network Performance Metrics for Building Applications

April 1, 2010
Author(s)
Won Suk Jang, William M. Healy
Metrics are investigated to help assess the performance of wireless sensors in buildings. Wireless sensor networks present tremendous opportunities for energy savings and improvement in occupant comfort in buildings by making data about conditions and

Building Information Exchange for Fire Responders Workshop: Proceedings

March 26, 2010
Author(s)
Jason D. Averill, David G. Holmberg, Alan B. Vinh, William D. Davis
Presently, there is no integrated solution for delivering building data into the hands of emergency responders. Technically, there are many challenges to collect, format, process, integrate and transport building data out of the building. Beyond this, the

Connecting Buildings to Public Safety Networks

February 25, 2010
Author(s)
Alan B. Vinh, David G. Holmberg
The operation of modern commercial buildings uses digital control systems which monitor a vast amount of sensors. These sensors in turn produce data that is available for building control but also can be mission-critical for effective emergency response

Effect of Heat Pump Commissioning Faults on Annual Energy Use

January 24, 2010
Author(s)
Piotr A. Domanski, Hugh Henderson, William V. Payne
The study sought to develop an understanding of the impact of commissioning common faults the energy consumption of an air-to-air heat pump installed in a single-family house. Through annual simulations of the house/heat pump system, the study found that

BACnet and the Smart Grid

November 1, 2009
Author(s)
David G. Holmberg, Steven T. Bushby
The future Smart Grid will be a transformation of the current electric grid. The key enablers for this transformation will be dynamic rates and the ability for customers and the utility to communicate and respond in real time. This in turn will produce an

The Virtual Cybernetic Building Testbed-A Building Emulator

July 16, 2009
Author(s)
Steven T. Bushby, Michael A. Galler, Natascha S. Milesi-Ferretti, Cheol D. Park
Building emulators couple computer simulations to real control hardware, creating a useful tool for studying building control system performance. The National Institute of Standards and Technology's Virtual Cybernetic Building Testbed (VCBT) is a whole

Connecting Buildings to Public Safety Networks

July 13, 2009
Author(s)
Alan B. Vinh, David G. Holmberg
The operation of modern buildings can support a vast amount of static and real-time data. Static information such as building schematics is vital for security and rescue purposes. First responders can be notified of designated building alerts in real-time

Connecting Buildings to Public Safety Networks (conference paper)

July 10, 2009
Author(s)
Alan B. Vinh, David G. Holmberg
The operation of modern commercial buildings uses digital control systems which monitor a vast amount of sensors. These sensors in turn produce data that is available for building control but also can be mission-critical for effective emergency response
Was this page helpful?